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Contains:  M 82, NGC 3034, M 81, Bode's nebulae, NGC 3031
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M81 - M82 , 





    
        

            Frank Schmitz
M81 - M82

M81 - M82

Technical card

Resolution: 1971x941

Dates:Sept. 25, 2017

Frames:Hutech IDAS LPS D1: 44x450" ISO800 bin 1x1

Integration: 5.5 hours

Flats: ~50

Bias: ~50

Avg. Moon age: 5.05 days

Avg. Moon phase: 26.15%

Bortle Dark-Sky Scale: 4.00

Temperature: 14.00

Astrometry.net job: 1763072

RA center: 148.976 degrees

DEC center: 69.347 degrees

Pixel scale: 1.929 arcsec/pixel

Orientation: 95.474 degrees

Field radius: 0.585 degrees

Locations: Home, Odenthal, Deutschland, Germany

Description

I am lacking targets at the moment as I can't see anything beyond the south meridian. So M81 and M82 it is again. 44 subs, quite heavy light pollution in this area for me.

I wanted to get all four galaxies in this area. Unfortunately UGC 5432 is nothing more than a blurry spot :)

Comments

Author

zishor
Frank Schmitz
License: None (All rights reserved)
2342
Like

Revisions

  • M81 - M82 , 





    
        

            Frank Schmitz
    Original
  • M81 - M82 , 





    
        

            Frank Schmitz
    B
  • M81 - M82 , 





    
        

            Frank Schmitz
    C
  • M81 - M82 , 





    
        

            Frank Schmitz
    D
  • Final
    M81 - M82 , 





    
        

            Frank Schmitz
    E

B

Decided to focus on the close up

C

so, with my background black color issue I try to do aim for someting between 10-12 RGB on all colors to get a more uniform look. I find it very difficult with the mac to get the right color. During the day all is good, at night you see how bright your image was

D

Colors and a bit less noise

Sky plot

Sky plot

Histogram

M81 - M82 , 





    
        

            Frank Schmitz

In these public groups

Cloudy Nights
Fast Newtonians